The problem with this unit is that the jacks are soldered in in such a way that you would pretty much have to cut them out of the case, or unsolder all the pots and jacks to get it out, But I wasn't sure if someone knew some magic trick here.

Mine does the same, well, the buzz goes away when i touch the case, i think i must have a grounding problem somewhere, either with my sockets (all of them), or with both my amps, or with my sansamp (even tho its there when im not using it, it it isnt connected at all), or my basses (yup, all 5 of them) and each of my cables . . . ****e

No magic tricks, it's just a pain in the butt! I wouldn't pull it apart - there's not much that could be done really save for resoldering the jacks or replacing them - but that's unlikely to be the fault - although it is possible.

Eliminate all other variables first; try a different bass, in a different room, with the lights switch on/off, different cables, different amps etc.